302 KEPORT— 1891, 



The following are the revised figures of the South Soarle (or Colling- 

 ham boring), Nottinghamshire, on the border of the Lincoln county 

 boundary, and nine miles to the south-west of that city : — 



Ft. 



Deep deposits ^^1 



(Lower lias 29 [7^0 



lRh:etic 65 [ 



Keujsei' marls ......... 688 J 



Keuper sandstone and shale ........ 205 J 



Upper soft sandstone 205^ 



Trias- CBlue shale 1 } 



J Eeddish brown conglomerate 73 I 11 



[Quartzite conglomerate ......,, 39 j 



Lower soft sandstones, marls in the first 79 feet . . . 223 



I Permian red marls 118i^\ 



p ■ J Magnesian limestone, light j^ellowish ..... 43^ c-iq 



^^™^^°lMarl, red and blue gypsum, sandstone ISO'^^"* 



I Thin bedded grey shale dolomite, basement breccia , . 118 J 

 Upper "I 



Coal- f Deep red indurated marls with haematite nodules .-. , . 12 

 measures ) 



Springs at 834 feet, flowed 11 gallons per minute ; at 950 feet, 50 

 gallons per minute, and are said to have risen 52 feet above the surface. 

 The temperature of the water was 69° F. at the base of the Keuper, and 

 73° at the top of the Permian. The beds have been studied by Dr. Hull, 

 F.R.S., Mr. Wilson, F.G.S., and Mr. Dalton, F.G.S.; the information 

 given above is drawn up from their united labours. 



Information from Mr. H. Teague, C.B., Citii Engineer, Lincoln. 



A trial borehole at Bracebridge, Lincoln, by Messrs. Bass and Co. 

 was discontinued at a depth of 320 feet, the base of the lower lias clay 

 not being reached. The water obtained at that depth contained — 



Grains per gallon 



Sodium chloride 549-00 



Sodium bromide ........ ll'OO 



Sodium carbonate ........ 15 00 



Calcium 12-50 



Magnesium 4-58 



Calcium sulphate ....... .1-13 



Silica "35 



Iron oxide, alumina, ifec '21 



Suspended matter ........ "04 



593-81 



The discharge from springs in the Lincoln area has been taken by 

 the City Engineer at various points at Tealby on the Wolds. The 

 discharge on May 25, 1891, was 109,440 gallons per day. At Welton 

 these springs yielded 2,800,000 gallons on June 22, 18yl ; in August 

 1878 they only yielded 105,000 gallons ; and in June, 1887, 163,000 per 

 24 hours, proving the extreme variability of oolitic springs. The maxi- 

 mum discharge was' after a rainfall of five inches in the previous five 

 weeks. A boreJiole,at Deneholme, 106 feet in depth, yielded 20,000 

 gallons per 24 hours ^ its height and quantity were affected by rainfall. 



